Are aliens using a quirk of the sun's gravity to transmit information through an interstellar communication network? For the first time ever, astronomers explored this intriguing possibility and scanned for signals coming from hidden nonhuman probes orbiting the sun. So far, the method hasn't turned up signs of spacefaring aliens,...
Using a new machine-learning algorithm, scientists have picked up eight extraterrestrial signals that seem to bear the hallmarks of technology. The research, published Jan. 30 in the journal Nature Astronomy, doesn't claim to have really found proof of intelligent aliens; a brief follow-up search for the signals detected in the...